The LC-20AT is a workhorse for routine daily use. Two LC-20AT pumps may be used to achieve high-pressure gradient elution for the best gradient accuracy. Alternatively, one LC-20AT pump may be outfitted with a LPGE valve for low-pressure gradient elution.
Enhanced Solvent Delivery Specifications
Flow-rate accuracy and precision in the micro-flow rate region have been improved with the addition of a new type of check valve and modifications to the solvent delivery control method. Non-polar organic solvents such as hexane can be delivered stably.
New and improved plunger seal materials ensure robust, long-lasting performance. A sapphire plunger optimized according to its crystal structure and a precise plunger-holding mechanism help increase the service life of plunger seals and enable stable solvent delivery over long periods.
An optional low pressure gradient valve (LC-20AD/20AT), CBM-20Alite system controller, and a seal wash pump (LC-20AD) can now be installed inside the solvent delivery unit, enabling 4-solvent gradient elution in a compact space. The LC-20AB high-pressure binary gradient pump delivers the performance of two LC-20AD pumps in one compact unit.
|Solvent delivery method||Series-type double plunger|
|Plunger capacity||Primary side: 47µL, Secondary side: 23µL|
|Maximum discharge pressure||40MPa|
|Flow-rate setting range||0.001 to 10.000 mL/min.|
|Flow-rate accuracy||No more than 2% or 2µL/min., whichever is greater (0.01 to 5 mL/min.)|
|Flow-rate precision||No more than 0.06% RSD or 0.02 min SD, whichever is greater|
|Pulsation||0.3 MPa (for water at 1.0 mL/min. and 7MPa)|
|Constant-pressure solvent delivery||Supported|
|Plunger rinsing mechanism||Manual rinsing or automatic rinsing using optional product|
|Safety measures||Liquid-leakage sensor, high-pressure/low-pressure limits|
|Operating temperature range||4oC to 35oC|
|Dimensions, weight||260 (W) x 140 (H) x 420 (D) mm, 11 kg|
|Power requirements||100 VAC, 150 VA, 50/60 Hz|